Pyrithione zinc. Starts at the scalp for beautiful hair. Basic cleaning for normal hair. Dandruff shampoo for frequent use. Advanced formula relieves scalp dryness, itch, irritation and helps prevents flakes. Clean, manageable hair everyday. Keeps hair clean and manageable. Gentle and pH balanced for everyday use - even for permed or color-treated hair. .; The United States' #1 selling shampoo* (*based on 2006-07 dollar share); Formulated with a fresh, clean scent; Can help keep hair clean, mPackaging my vary due to manufacturer udpates